Sure. Or even used with AppleCare.
My 2015 MBP was purchased as a used 2012 MBP. Turns out that model had a repair issued on it and after the third or fourth time, they just gave me a new mac as a replacement, a 2015 MBP. $800 craigslist investment paid off. I'm still using Apple's 2015 replacement, four years later. The replacement came with AppleCare, too, so I was able to have the swollen battery replaced twice.
What are some good sites (reliable, good inventory, deals, etc) to buy used or refurb iMacs? You can't always get lucky on CL!